2 COCAINE FIGURES IN COLOMBIA SEEK A DEAL ON AMNESTY

By JAMES BROOKE, Special to The New York Times

Published: August 30, 1989

BOGOTA, Colombia, Aug. 29—
With a Government crackdown continuing, leaders of two of Colombia's largest cocaine rings have offered to get out of the drug trade in return for an amnesty and truce in Colombia's war on drugs.

The offers became public today as bombs shook Colombia's two largest cities, Bogota and Medellin, increasing tension that has remained high since traffickers touched off the war by assassinating the nation's leading presidential candidate, Luis Carlos Galan, 11 days ago. There were no reports of injuries in the bombings today, which occurred early in the morning.

''No more drug trafficking, no more war, no more assassinations, no more bombs, no more arson,'' Fabio Ochoa Restrepo, the patriarch of a Medellin cocaine clan, proposed in a letter to President Virgilio Barco Vargas. ''Let's sit down and talk.'' Government's Response Last week, a second leading cocaine figure, Jose Rodriguez Gacha, called a Colombian reporter from his hiding place to make a peace offer. A reporter who listened to a tape of the telephone call said Mr. Gacha offered to give the Government all his farms and airplanes in return for his ''integration'' into society. Army troops occupy about 10 of Mr. Gacha's ranches and houses.

It is impossible to judge the sincerity of the offers, which are reminiscent of others made in the past, or to determine whether such views were widespread among the cocaine traffickers.

In response to the overtures from the traffickers, Communications Minister Carlos Lemos Simmonds said today: ''The Government has not considered negotiating with people who have committed drug-trafficking crimes. The drastic nature of the measures taken does not justify this kind of dialogue.'' 'Let There Be Dialogue'

Mr. Ochoa, the father of three men wanted in the United States on drug charges, warned in his letter, made public today, that Colombia's cocaine traffickers ''prefer a grave in Colombia over a jail cell in the U.S.''

''Doctor Barco, let there be dialogue, let there be peace, let there be amnesty,'' the elder Mr. Ochoa wrote in the letter, dated last Saturday. ''Let us not be proud. Let us not be stubborn.'' Mr. Ochoa lives on a horse farm near Medellin. He is not being sought by the Colombian authorities at this time.

In Washington, Colombia's Justice Minister, Monica de Greiff, asked the State Department for $14 million more in aid to protect judges and court officials from assassination by drug traffickers. She also denied reports that she would resign. [ Page A10. ] In Medellin, a few hours after this morning's bombings, the city's Mayor backed Mr. Ochoa's call for peace talks. ''It is not only the position of Fabio Ochoa, it is the position of many people who believe that you have to talk to obtain peace,'' said the Mayor, Juan Gomez Martinez. Six judges resigned in Medellin today under death threats.

A drug-financed terror group that works for the Extraditables, as the Colombian traffickers sought by the United States are known, is believed to be behind the bombings that have shaken Medellin daily since Thursday.

But President Barco has refused to back away from his declaration of ''war,'' made against drug dealers last week. ''We cannot rest until we destroy the organizations dedicated to narcotics trafficking,'' Mr. Barco said in a message recorded on Monday for American television. In a direct appeal to American cocaine users, Mr. Barco said in English, ''Those of you who depend on cocaine have created the largest, most vicious criminal enterprise the world has known.'' History of Offers

Colombia's cocaine dealers have a history of trying to negotiate peace with the Government. In mid-1984, after the assassination of Justice Minister Rodrigo Lara Bonilla, a police crackdown forced several traffickers to flee to Panama. At that time, an envoy of Colombia's President, Belisario Betancur, held secret talks with leaders of the Medellin cartel.

The fugitives offered to stop dealing drugs and to bring home enough money to offset Colombia's foreign debt, about $15 billion at the time. But when the talks became public, they caused a furor and were abandoned.

''How much blood could have been avoided after the Panama talks,'' read a statement from a major Medellin trafficker, Pablo Escobar Gaviria, which was printed in the newspaper La Prensa on Saturday. ''We want peace. We have demanded it shouting, but we cannot beg for it.''

In contrast to the two other cocaine figures, Mr. Escobar did not offer to give up dealing drugs. ''No more the path of legal action,'' his statement concluded. ''Now it is with blood.''

President Barco also appears to believe that it will be a fight to the finish.

''The survival of Colombia, which is one of the oldest and most stable democracies of Latin America, is now at risk,'' he said in the videotape broadcast, which was recorded for American television.

Government raids are continuing. But Col. Eduardo Arvelo Castaneda, the Defense Ministry spokesman, said today that the police had released 60 percent of the 11,000 people arrested in the last 10 days in sweeps against suspected traffickers. Details of an Arrest

Today the army gave details of the arrest last Friday of Abraham Majuat Hernandez at a ranch near Medellin.

In one of the biggest seizures of the year, the raid netted a small airplane and 4.5 tons of cocaine - roughly the equivalent of 1 percent of Colombia's annual production. According to the Bogota newspaper El Espectador, Mr. Majuat offered soldiers $25,000 and information on other traffickers if they would let him go.

Two other raids, in the port of Barranquilla, netted 8.2 tons of marijuana.

Mr. Majuat was identified by the army as a major financial figure in the Medellin cartel. He and two others arrested in the last 10 days, Eduardo Martinez Romero and Bernardo Londono Quintero, are believed to be candidates for extradition to the United States.

Gen. Miguel Maza Marquez, director of Colombia's national security agency, asserted today that Mr. Majuat was also ''very involved'' in the killing of Mr. Galan.

Photos of Pres. Bush with Attorney General Dick Thornburgh, John H. Sununu, Secretary of Defense Dick Cheney, William H. Webster and William Bennett (AP); one of six Government-owned liquor stores destroyed in Medellin. (Agence France-Presse) (pg. A1); barrels of marijuana seized in the Caribbean coastal city of Barranquilla, Colombia being guarded by a police officer (AP) (pg. A10)